JSL Building Blocks

Learning the Basics of JSL

Studying the syntax and basics of JSL is crucial, whether you are a beginning or an advanced user. Some concepts (such as loops and variables) are common among many scripting languages, but punctuation rules differ in JSL.

Figure 5.1 Example of a JSL Script 

This chapter introduces you to the basic concepts of JSL, from syntax rules and file path conventions to conditions and namespaces.

Contents 

JSL Syntax Rules

Value Separators

Numbers

Names

Comments

Operators

Boolean Values

Global and Local Variables

Local Namespaces

Named Namespaces

Show Symbols, Clear Symbols, and Delete Symbols

Lock and Unlock Symbols

Hide a Global Variable

Rules for Name Resolution

Variable Names Used as Arguments

Rules for Resolving Names

Scoping Operators

Troubleshoot Variables and Column Names

Troubleshoot Variables and Keywords

Frequently Asked Questions about Name Resolution

Alternatives for Gluing Expressions Together

Iterate

For

While

Summation

Product

Break and Continue

Conditional Functions

If

Match

Choose

Interpolate

Step

Compare Incomplete or Mismatched Data

Missing Values

Inquiry Functions

General Element Types

Specific Element Types

Object Attributes

Host Information

Version Information